WEBVTT THE NEW KATY PERRY SONG,"CHAINED TO THE RHYTHM," WHICHIS SET TO BE RELEASED ON FRIDAY.FANS CAME TO GET THE SNEAK PEEK,BUT SOME WERE NOT HAPPY ABOUTTHE PLACEMEN>> WHEN I SAW HER TWEETS THISMORNING, I KNEW WHAT I WAS DOINGOVER MY LUNCH HOUR. REPORTER: IT ALL STARTED WHENKATY PERRY TWEETED THIS VIDEOLAST NIGHT OF HER PLUGGINGHEADPHONESINTO A DISCO BALL, AND A MESSAGEON HER JAIL THAT SAID, -- ON HERNAILS THAT SAID "FIND ME."SHE URGED HER FANS TO LOCATEEACH DISCO BALL PLACED IN 23DIFFERENT CITIES ACROSS THEWORLD IF THEY WANTED TO HEAR HERNEW SINGLE BEFORE ITS RELEASE ONFRIDAY.>> I WASN'T ALLOWED TO OPEN ITUNTIL THIS MORNINGREPORTER: SYDNY HOSKINSONRECEIVED THE DISCO BALL ANDFOLLOWED DETAILED INSTRUCTIONSON HOW TO SET IT UP.THE FIRST REACTION FOR MOST WASTO DANCE.>> I LOVE IT.I LOVE TO DANCE AND THAT'S THEPERFECT SONG T DANCE TO. REPORTER: I TOOK A LISTEN FORMYSELF."CHAINED TO THE RHYTHM" IS ASONG YOU WONT WANT TO MISS WHENIT GOES ON SALE FRIDAY. >> HAVING PEOPLE HUNT FOR THEDISCO BALL THROUGHOUT THEIRCITIES IS A PRETTY COOL IDEA TOME. >> IT'S AWESOME THAT WE GOT TOBE CHOSEN FOR IT AND THAT WEKNEW IT WAS HERE AND WE FOUNDIT. >> I'M THE FACILITY MANAGER FORTHE DES MOINES ART CENTER, THISIS OUR PROPERTY.REPORTER: SCULPTURE PARKOFFICIALS FOUND OUT ABOUT THE